ProjectCalc offers a suite of 73 calculators designed for construction, home improvement, and DIY projects. The platform provides fast, straightforward tools to help users calculate quantities and measurements for materials and tasks encountered in a wide range of projects, from home renovations to professional trade work. Its calculators are accessible without requiring signups or dealing with popups, and are optimized to work on mobile devices even with limited connectivity.
The tool includes specialized calculators grouped by use case. For home and DIY projects, users can estimate needs for materials such as drywall sheets, paint gallons, concrete, roofing shingles, hardwood planks, carpet, vinyl, tile, mulch, gravel, fence posts, deck stain, insulation, sod, pavers, retaining wall blocks, roof pitch, and topsoil. In the trades and construction section, ProjectCalc provides calculators for carpentry (such as lumber, cut lists, stair stringers, beam spans, plywood, rafter length, headers, roof trusses, snow load, and floor joist span), masonry and siding (including siding squares, brick counts, mortar, CMU blocks, stone veneer, stucco, tuckpointing, and rebar), electrical (voltage drop, conduit fill, wire gauge, breaker size, panel load, conduit bending, generator size), plumbing (pipe volume, pipe slope, water supply and drain sizes, vent pipe, pressure loss, flow rate, trap size, water meter, building drain, wet wall stack, booster pump, expansion tank, water heater), and HVAC (AC BTU, duct CFM, heat load, refrigerant charge, static pressure, ventilation, heat loss, AC tonnage, furnace size, boiler size, mini-split BTU).
For financial calculations, ProjectCalc includes tools for mortgage payments, car loan payments, personal loan payoff, and restaurant tip splitting. The platform also offers paid bundles in the form of Excel workbooks: the Contractor Estimating Mega Bundle, which includes toolkits for multiple trades, and the Garage Ledger Vault, which tracks project-car builds with dashboards and ROI calculations. These bundles are compatible with Excel, Google Sheets, LibreOffice, and Apple Numbers.
ProjectCalc is intended for both professionals and DIY users, providing clear, one-click answers with transparent math. The calculators are delivered via a web platform and are free to use, with additional paid Excel bundles available for more comprehensive estimating and tracking needs.
In the Other productivity space, ProjectCalc takes a focused approach. It focuses on calculating material quantities and costs for construction and DIY projects quickly and accurately. ProjectCalc is a consumer product aimed at homeowners and DIY enthusiasts. ProjectCalc costs nothing to use. The product ships for the web.
ProjectCalc first shipped in 2026. The project is developed in the open on GitHub with 113 commits in the last 90 days. Across PulseGate's embedding index, ProjectCalc has few near neighbours, marking it as relatively distinct. Among its 12 catalogued features are material calculators, drywall estimator, and paint calculator.
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